Potassium deficiency headache may be caused by hypokalemia, or it may be caused by trauma, excessive mental stress, taking medication and so on. It is recommended to clarify the cause under the guidance of doctor in time. Patients with hyperkalemia may cause headache, mainly because more serious hyperkalemia may lead to malignant arrhythmia, which may lead to the clinical manifestation of headache. Patients with hyperkalemia need to seek prompt medical attention once symptoms appear, and actively carry out treatment under the guidance of the doctor, otherwise it may cause life-threatening diseases. Under the guidance of doctor, patients need to take appropriate treatment measures according to the degree of potassium deficiency, such as oral potassium chloride preparations, or intravenous potassium supplementation when the symptoms are severe. Patients with hyperkalemia need to pay attention to it, and it is recommended to consult a doctor in time for systematic treatment under the doctor’s guidance.